Temporal pulse broadening due to dispersion and weak turbulence in FSO communications

Bouhadda, Mohamed; Abbou, F. M.; Serhani, Mustapha; Chaatit, Fouad; Abid, A.; Boutoulout, Ali

doi:10.1016/j.ijleo.2019.163327

Cited by 7 publications

(2 citation statements)

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“…Depending on the severity of turbulence, two regions of interests can be specified: weak and strong turbulence. Extensive researches have been carried out under the assumption of weak turbulence [3][4][5][6][7]. In this case, the differential equation governing the MCF has been solved for the case of plane wave [1,6].…”

Section: Introductionmentioning

confidence: 99%

“…However, approximate solutions to the stochastic wave equation are obtainable, based on the Rytov and Born methods to lowest order, and therefore the MCF can be approximated, accordingly [2,8]. Following this approach [3][4][5][6][7] discussed pulse broadening and [9] discussed pulse time of arrival. Moreover, expressions for the pulse average intensity under limiting operation conditions were given in [2,5] for dispersion-free weak turbulence.…”

Section: Introductionmentioning

confidence: 99%

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A simple pulse shape for an EM pulse propagating through dispersive strong turbulence

Shishter

2021

J. Opt.

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The shape of an EM pulse wave propagating through dispersive-strong turbulence shows asymmetry, with an exponentially decaying tail due to different pulse components traversing different paths. An accurate expression for the pulse shape is identified in literature, but is intricate and seldom used. Instead, the model of a Gaussian convolved with an exponential is assumed more often. Here, a relatively simple expression is derived for the average intensity of a narrowband Gaussian pulse propagating through dispersive-strong turbulence, which reduces to familiar results in the absence of dispersion. Comparisons to well known pulse models is carried out. Furthermore, the validity of the proposed model is tested for the application of radiations from pulsars.

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